takuya ichise / TI_NEOPIXEL_SPI

A library for SPI control of adafruit's neopixel ring and addressable LEDs.

Dependencies:   PixelArray

Dependents:   TI_NEOPIXEL_SPI_SAMPLE

TI_NEOPIXEL_SPI.cpp@2:0148ac5c90fa, 2019-07-28 (annotated)

Committer:
tichise
Date:
Sun Jul 28 00:13:03 2019 +0000
Revision:
2:0148ac5c90fa
Parent:
0:c28aa7d4f97e
Child:
3:f0859c280204
Child:
5:69bb2a2fa11f
Compatible with large rings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tichise 0:c28aa7d4f97e 1 #include "TI_NEOPIXEL_SPI.h"
tichise 0:c28aa7d4f97e 2 #include "mbed.h"
tichise 0:c28aa7d4f97e 3
tichise 0:c28aa7d4f97e 4 TI_NEOPIXEL_SPI::TI_NEOPIXEL_SPI(PinName input) : _ledStrip(input)
tichise 0:c28aa7d4f97e 5 {
tichise 0:c28aa7d4f97e 6 }
tichise 0:c28aa7d4f97e 7
tichise 0:c28aa7d4f97e 8 void TI_NEOPIXEL_SPI::switchLightOff(int count)
tichise 0:c28aa7d4f97e 9 {
tichise 0:c28aa7d4f97e 10
tichise 0:c28aa7d4f97e 11 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 12
tichise 0:c28aa7d4f97e 13 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 14 {
tichise 0:c28aa7d4f97e 15 colors[i].red = 0;
tichise 0:c28aa7d4f97e 16 colors[i].green = 0;
tichise 0:c28aa7d4f97e 17 colors[i].blue = 0;
tichise 0:c28aa7d4f97e 18 }
tichise 0:c28aa7d4f97e 19
tichise 0:c28aa7d4f97e 20 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 21 }
tichise 0:c28aa7d4f97e 22
tichise 2:0148ac5c90fa 23 void TI_NEOPIXEL_SPI::switchLightOn(int count, int startCount, int endCount, rgbColor rgbColor)
tichise 0:c28aa7d4f97e 24 {
tichise 0:c28aa7d4f97e 25 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 26
tichise 0:c28aa7d4f97e 27 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 28 {
tichise 2:0148ac5c90fa 29 if (startCount <= i && i < endCount) {
tichise 2:0148ac5c90fa 30 colors[i].red = rgbColor.red;
tichise 2:0148ac5c90fa 31 colors[i].green = rgbColor.green;
tichise 2:0148ac5c90fa 32 colors[i].blue = rgbColor.blue;
tichise 2:0148ac5c90fa 33 } else {
tichise 2:0148ac5c90fa 34 colors[i].red = 0;
tichise 2:0148ac5c90fa 35 colors[i].green = 0;
tichise 2:0148ac5c90fa 36 colors[i].blue = 0;
tichise 2:0148ac5c90fa 37 }
tichise 0:c28aa7d4f97e 38 }
tichise 0:c28aa7d4f97e 39
tichise 0:c28aa7d4f97e 40 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 41 }
tichise 0:c28aa7d4f97e 42
tichise 2:0148ac5c90fa 43 void TI_NEOPIXEL_SPI::changeColor(int count, int startCount, int endCount, rgbColor rgbColor)
tichise 0:c28aa7d4f97e 44 {
tichise 0:c28aa7d4f97e 45 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 46
tichise 0:c28aa7d4f97e 47 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 48 {
tichise 2:0148ac5c90fa 49 if (startCount <= i && i < endCount) {
tichise 2:0148ac5c90fa 50 colors[i].red = rgbColor.red;
tichise 2:0148ac5c90fa 51 colors[i].green = rgbColor.green;
tichise 2:0148ac5c90fa 52 colors[i].blue = rgbColor.blue;
tichise 2:0148ac5c90fa 53 } else {
tichise 2:0148ac5c90fa 54 colors[i].red = 0;
tichise 2:0148ac5c90fa 55 colors[i].green = 0;
tichise 2:0148ac5c90fa 56 colors[i].blue = 0;
tichise 2:0148ac5c90fa 57 }
tichise 0:c28aa7d4f97e 58 }
tichise 0:c28aa7d4f97e 59
tichise 0:c28aa7d4f97e 60 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 61 }
tichise 0:c28aa7d4f97e 62
tichise 2:0148ac5c90fa 63 void TI_NEOPIXEL_SPI::changePointColor(int count, int topIndex, int endIndex, rgbColor topColor, rgbColor bottomColor)
tichise 0:c28aa7d4f97e 64 {
tichise 0:c28aa7d4f97e 65 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 66
tichise 0:c28aa7d4f97e 67 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 68 {
tichise 2:0148ac5c90fa 69 if (i == topIndex)
tichise 0:c28aa7d4f97e 70 {
tichise 0:c28aa7d4f97e 71 colors[i].red = topColor.red;
tichise 0:c28aa7d4f97e 72 colors[i].green = topColor.green;
tichise 0:c28aa7d4f97e 73 colors[i].blue = topColor.blue;
tichise 0:c28aa7d4f97e 74 }
tichise 2:0148ac5c90fa 75 else if (i == endIndex)
tichise 0:c28aa7d4f97e 76 {
tichise 0:c28aa7d4f97e 77 colors[i].red = bottomColor.red;
tichise 0:c28aa7d4f97e 78 colors[i].green = bottomColor.green;
tichise 0:c28aa7d4f97e 79 colors[i].blue = bottomColor.blue;
tichise 0:c28aa7d4f97e 80 }
tichise 0:c28aa7d4f97e 81 else
tichise 0:c28aa7d4f97e 82 {
tichise 0:c28aa7d4f97e 83 colors[i].red = 0;
tichise 0:c28aa7d4f97e 84 colors[i].green = 0;
tichise 0:c28aa7d4f97e 85 colors[i].blue = 0;
tichise 0:c28aa7d4f97e 86 }
tichise 0:c28aa7d4f97e 87 }
tichise 0:c28aa7d4f97e 88
tichise 0:c28aa7d4f97e 89 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 90 }
tichise 0:c28aa7d4f97e 91
tichise 2:0148ac5c90fa 92 void TI_NEOPIXEL_SPI::circle(int count, int startCount, int endCount, rgbColor rgbColor)
tichise 0:c28aa7d4f97e 93 {
tichise 0:c28aa7d4f97e 94 for (int j = 0; j < count; j++)
tichise 0:c28aa7d4f97e 95 {
tichise 0:c28aa7d4f97e 96 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 97
tichise 0:c28aa7d4f97e 98 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 99 {
tichise 2:0148ac5c90fa 100 if (i <= j)
tichise 0:c28aa7d4f97e 101 {
tichise 2:0148ac5c90fa 102 if (startCount <= i && i < endCount) {
tichise 2:0148ac5c90fa 103 colors[i].red = rgbColor.red;
tichise 2:0148ac5c90fa 104 colors[i].green = rgbColor.green;
tichise 2:0148ac5c90fa 105 colors[i].blue = rgbColor.blue;
tichise 2:0148ac5c90fa 106 } else {
tichise 2:0148ac5c90fa 107 colors[i].red = 0;
tichise 2:0148ac5c90fa 108 colors[i].green = 0;
tichise 2:0148ac5c90fa 109 colors[i].blue = 0;
tichise 2:0148ac5c90fa 110 }
tichise 0:c28aa7d4f97e 111 }
tichise 0:c28aa7d4f97e 112 else
tichise 0:c28aa7d4f97e 113 {
tichise 0:c28aa7d4f97e 114 colors[i].red = 0;
tichise 0:c28aa7d4f97e 115 colors[i].green = 0;
tichise 0:c28aa7d4f97e 116 colors[i].blue = 0;
tichise 0:c28aa7d4f97e 117 }
tichise 0:c28aa7d4f97e 118 }
tichise 0:c28aa7d4f97e 119
tichise 0:c28aa7d4f97e 120 _ledStrip.update(colors, count);
tichise 2:0148ac5c90fa 121
tichise 2:0148ac5c90fa 122 if (startCount <= j && j < endCount) {
tichise 2:0148ac5c90fa 123 wait(0.07);
tichise 2:0148ac5c90fa 124 }
tichise 0:c28aa7d4f97e 125 }
tichise 0:c28aa7d4f97e 126 }
tichise 0:c28aa7d4f97e 127
tichise 0:c28aa7d4f97e 128 void TI_NEOPIXEL_SPI::chase(int count, int bufferCount, rgbColor c1, rgbColor c2)
tichise 0:c28aa7d4f97e 129 {
tichise 0:c28aa7d4f97e 130 int virtualCount = count + bufferCount;
tichise 0:c28aa7d4f97e 131 neopixel::Pixel colors[virtualCount];
tichise 0:c28aa7d4f97e 132
tichise 0:c28aa7d4f97e 133 for (int j = 0; j < virtualCount; j++)
tichise 0:c28aa7d4f97e 134 {
tichise 0:c28aa7d4f97e 135 colors[j].red = c2.red;
tichise 0:c28aa7d4f97e 136 colors[j].green = c2.green;
tichise 0:c28aa7d4f97e 137 colors[j].blue = c2.blue;
tichise 0:c28aa7d4f97e 138 }
tichise 0:c28aa7d4f97e 139
tichise 0:c28aa7d4f97e 140 _ledStrip.update(colors, virtualCount);
tichise 0:c28aa7d4f97e 141
tichise 0:c28aa7d4f97e 142 for (int j = 0; j < virtualCount + bufferCount; j++)
tichise 0:c28aa7d4f97e 143 {
tichise 0:c28aa7d4f97e 144 colors[j].red = c1.red;
tichise 0:c28aa7d4f97e 145 colors[j].green = c1.green;
tichise 0:c28aa7d4f97e 146 colors[j].blue = c1.blue;
tichise 0:c28aa7d4f97e 147
tichise 0:c28aa7d4f97e 148 colors[j - bufferCount].red = c2.red;
tichise 0:c28aa7d4f97e 149 colors[j - bufferCount].green = c2.green;
tichise 0:c28aa7d4f97e 150 colors[j - bufferCount].blue = c2.blue;
tichise 0:c28aa7d4f97e 151
tichise 0:c28aa7d4f97e 152 _ledStrip.update(colors, virtualCount);
tichise 0:c28aa7d4f97e 153 wait(0.05);
tichise 0:c28aa7d4f97e 154 }
tichise 0:c28aa7d4f97e 155 }
tichise 0:c28aa7d4f97e 156
tichise 2:0148ac5c90fa 157 void TI_NEOPIXEL_SPI::chaseRainbow(int count)
tichise 2:0148ac5c90fa 158 {
tichise 2:0148ac5c90fa 159 for (int j = 0; j < count; j++)
tichise 2:0148ac5c90fa 160 {
tichise 2:0148ac5c90fa 161 neopixel::Pixel colors[count];
tichise 2:0148ac5c90fa 162
tichise 2:0148ac5c90fa 163 for (int i = 0; i < count; i++)
tichise 2:0148ac5c90fa 164 {
tichise 2:0148ac5c90fa 165 if (i <= j)
tichise 2:0148ac5c90fa 166 {
tichise 2:0148ac5c90fa 167 uint8_t phase = 256 / count * i;
tichise 2:0148ac5c90fa 168 rgbColor rgbColor = convertHsvToRgb(phase / 256.0, 1.0, 1.0);
tichise 2:0148ac5c90fa 169 colors[i].red = rgbColor.red;
tichise 2:0148ac5c90fa 170 colors[i].green = rgbColor.green;
tichise 2:0148ac5c90fa 171 colors[i].blue = rgbColor.blue;
tichise 2:0148ac5c90fa 172
tichise 2:0148ac5c90fa 173 // LEDを節約
tichise 2:0148ac5c90fa 174 colors[i-4].red = 0;
tichise 2:0148ac5c90fa 175 colors[i-4].green = 0;
tichise 2:0148ac5c90fa 176 colors[i-4].blue = 0;
tichise 2:0148ac5c90fa 177 }
tichise 2:0148ac5c90fa 178 else
tichise 2:0148ac5c90fa 179 {
tichise 2:0148ac5c90fa 180 colors[i].red = 0;
tichise 2:0148ac5c90fa 181 colors[i].green = 0;
tichise 2:0148ac5c90fa 182 colors[i].blue = 0;
tichise 2:0148ac5c90fa 183 }
tichise 2:0148ac5c90fa 184 }
tichise 2:0148ac5c90fa 185
tichise 2:0148ac5c90fa 186 _ledStrip.update(colors, count);
tichise 2:0148ac5c90fa 187 wait(0.06);
tichise 2:0148ac5c90fa 188 }
tichise 2:0148ac5c90fa 189 }
tichise 2:0148ac5c90fa 190
tichise 0:c28aa7d4f97e 191 void TI_NEOPIXEL_SPI::circleRainbow(int count)
tichise 0:c28aa7d4f97e 192 {
tichise 0:c28aa7d4f97e 193 for (int j = 0; j < count; j++)
tichise 0:c28aa7d4f97e 194 {
tichise 0:c28aa7d4f97e 195 neopixel::Pixel colors[count];
tichise 0:c28aa7d4f97e 196
tichise 0:c28aa7d4f97e 197 for (int i = 0; i < count; i++)
tichise 0:c28aa7d4f97e 198 {
tichise 0:c28aa7d4f97e 199 if (i <= j)
tichise 0:c28aa7d4f97e 200 {
tichise 0:c28aa7d4f97e 201 uint8_t phase = 256 / count * i;
tichise 0:c28aa7d4f97e 202 rgbColor rgbColor = convertHsvToRgb(phase / 256.0, 1.0, 1.0);
tichise 0:c28aa7d4f97e 203 colors[i].red = rgbColor.red;
tichise 0:c28aa7d4f97e 204 colors[i].green = rgbColor.green;
tichise 0:c28aa7d4f97e 205 colors[i].blue = rgbColor.blue;
tichise 0:c28aa7d4f97e 206 }
tichise 0:c28aa7d4f97e 207 else
tichise 0:c28aa7d4f97e 208 {
tichise 0:c28aa7d4f97e 209 colors[i].red = 0;
tichise 0:c28aa7d4f97e 210 colors[i].green = 0;
tichise 0:c28aa7d4f97e 211 colors[i].blue = 0;
tichise 0:c28aa7d4f97e 212 }
tichise 0:c28aa7d4f97e 213 }
tichise 0:c28aa7d4f97e 214
tichise 0:c28aa7d4f97e 215 _ledStrip.update(colors, count);
tichise 0:c28aa7d4f97e 216 wait(0.06);
tichise 0:c28aa7d4f97e 217 }
tichise 0:c28aa7d4f97e 218 }
tichise 0:c28aa7d4f97e 219
tichise 0:c28aa7d4f97e 220 rgbColor TI_NEOPIXEL_SPI::convertHsvToRgb(float h, float s, float v)
tichise 0:c28aa7d4f97e 221 {
tichise 0:c28aa7d4f97e 222 int i = floor(h * 6);
tichise 0:c28aa7d4f97e 223 float f = h * 6 - i;
tichise 0:c28aa7d4f97e 224 float p = v * (1 - s);
tichise 0:c28aa7d4f97e 225 float q = v * (1 - f * s);
tichise 0:c28aa7d4f97e 226 float t = v * (1 - (1 - f) * s);
tichise 0:c28aa7d4f97e 227 float r = 0, g = 0, b = 0;
tichise 0:c28aa7d4f97e 228
tichise 0:c28aa7d4f97e 229 switch (i % 6)
tichise 0:c28aa7d4f97e 230 {
tichise 0:c28aa7d4f97e 231 case 0:
tichise 0:c28aa7d4f97e 232 r = v;
tichise 0:c28aa7d4f97e 233 g = t;
tichise 0:c28aa7d4f97e 234 b = p;
tichise 0:c28aa7d4f97e 235 break;
tichise 0:c28aa7d4f97e 236 case 1:
tichise 0:c28aa7d4f97e 237 r = q;
tichise 0:c28aa7d4f97e 238 g = v;
tichise 0:c28aa7d4f97e 239 b = p;
tichise 0:c28aa7d4f97e 240 break;
tichise 0:c28aa7d4f97e 241 case 2:
tichise 0:c28aa7d4f97e 242 r = p;
tichise 0:c28aa7d4f97e 243 g = v;
tichise 0:c28aa7d4f97e 244 b = t;
tichise 0:c28aa7d4f97e 245 break;
tichise 0:c28aa7d4f97e 246 case 3:
tichise 0:c28aa7d4f97e 247 r = p;
tichise 0:c28aa7d4f97e 248 g = q;
tichise 0:c28aa7d4f97e 249 b = v;
tichise 0:c28aa7d4f97e 250 break;
tichise 0:c28aa7d4f97e 251 case 4:
tichise 0:c28aa7d4f97e 252 r = t;
tichise 0:c28aa7d4f97e 253 g = p;
tichise 0:c28aa7d4f97e 254 b = v;
tichise 0:c28aa7d4f97e 255 break;
tichise 0:c28aa7d4f97e 256 case 5:
tichise 0:c28aa7d4f97e 257 r = v;
tichise 0:c28aa7d4f97e 258 g = p;
tichise 0:c28aa7d4f97e 259 b = q;
tichise 0:c28aa7d4f97e 260 break;
tichise 0:c28aa7d4f97e 261 }
tichise 0:c28aa7d4f97e 262
tichise 0:c28aa7d4f97e 263 return (rgbColor){r * 255, g * 255, b * 255};
tichise 0:c28aa7d4f97e 264 }